Sunglasses with a third lens



FIG. 1 is an isometric view of sunglasses with a third lens showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a rear elevational view thereof showing my design. 

The ornamental design for sunglasses with a third lens, as shown and described. 